Excess Nutrient in Reservoir

While the Nutrient Feed Chart provides a weekly schedule for feeding, when your plants are young, they may not be able to absorb all the water and the nutrients within 7 days. To avoid excess build up of nutrients, wait until the reservoir is lower (around one liter or 75% empty) before adding fresh water and the next nutrient quantity.

If the pump is getting louder than usual, this is a good indication that your water is running low. Looking in the reservoir through the poor spout can confirm the amount of water in the tank. 

The temperature and humidity in your home, as well as the size and type of the plants, will effect how often the reservoir will need to be topped up. 

General Guidelines for Reservoir Re-Fill 

• Cooler in-home temperatures (15 -18 degrees Celsius) & seedlings - reservoir may take up to 10 - 12 days prior to needing refill and next nutrient requirement
• Warmer temperatures (19 - 25 degrees Celsius) & seedlings - reservoir refill around 7 - 9 days
• Large plants, especially heavy feeders like mature tomatoes and warm temperatures - reservoir may need refill and nutrient top-up after 5 days.